3.1.1. General information

Coupling is located between the engine and a transmission and intended for separation and connection of the flywheel established on cranked to a shaft of the engine, and primary shaft of a transmission.

Fig. 3.1. Components of a working contour of coupling of the Mazda 6 car: 1–coupling pedal; 2–main cylinder of coupling; 3–working cylinder of coupling; 4–coupling; 5–coupling casing; 6–a conducted disk of coupling; 7–bearing of switching off of coupling; 8–flywheel; 9–tank of working liquid of a hydraulic actuator of coupling

On the cars equipped with a mechanical transmission, dry one-disk coupling of diafragmenny type (fig. 3.1) is used.

Before performance of any operations on coupling it is necessary to carry out some control actions to be sure that coupling is faulty.

At coupling check first of all check liquid level in a tank. Check a condition of hoses and their connections. Examine plugs of a pedal of coupling on existence of wear and reliability of fastening.